How to change Product ID in Windows XP Pro?

[SPEEDbagal]

Hello,

Under windows register (regedit), I found 5 entries that contains the windows product id field, these are:
1) [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Registration]
2) [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Curr entVersion]
3) [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion]
4) [HKEY_LOCAL_MACHINE\SYSTEM\WPA\Key-CJ27J3P2XV9J9JCPB4DVT]
5) [HKEY_LOCAL_MACHINE\SYSTEM\WPA\Key-G4XTBRDJMGP7G4WJTJK48]

But the one that is under the HKEY_LOCAL_MACHINE\SYSTEM\WPA\ cannot be change. I try using x-setup but it only change the first 3.

Anyone know how to change this or is there any tools to do this?

Thanks,